Dev Tooling | Kuneco April 2021


In this video, we will explore the developer tools discussed during the Kuneco April 2021 event. These tools are designed to make it easier for developers to build, understand, and grow their projects on the Sello blockchain. We will cover two tools: Datum, a next-generation blockchain infrastructure, and BigQuery, a data product provider for various blockchains.

Tool 1: Datum


Datum is a tool presented by Samuel, the CTO of Datum. It aims to simplify the process of building blockchain applications by providing a next-generation blockchain infrastructure. Datum supports over 20 blockchains and offers an easy API for developers to build on the blockchain.

Benefits of Abstraction

With Datum’s abstraction layer, developers can leverage multiple blockchains using the same API. This allows for seamless integration with different protocols and gives developers the freedom to focus on their vision and build applications without worrying about infrastructure or smart contract complexities.

Example Deployment on Cello

To demonstrate Datum’s capabilities, Samuel walks us through deploying an ERC721 smart contract on the Cello blockchain using their API. He showcases how easy it is to deploy the contract, mint a new token, and transfer it to another recipient using just a few simple API calls.

Tool 2: BigQuery


BigQuery, presented by Alexey, is a data product provider specializing in blockchain data. They offer aggregated and indexed databases for various blockchains, including Cello. Developers can access this data through a GraphQL API, enabling them to build a wide range of blockchain applications.

Accessing Data with GraphQL

Developers can use BigQuery’s GraphQL API to fetch historical data, perform on-chain analytics, monitor token activity, analyze smart contracts, and more. The API provides a universal interface for accessing blockchain data and can be utilized for a variety of applications.

Getting Started with BigQuery

To start using BigQuery, developers can visit their website and explore the documentation and tutorials. They also provide a GraphQL IDE to help developers build their first query and start using the API immediately. Additionally, BigQuery offers a Telegram channel where developers can ask questions and find support.


Both Datum and BigQuery offer valuable tools for developers looking to build on the Sello blockchain. Datum’s infrastructure simplifies the process of building blockchain applications by providing an easy API and abstraction layer, while BigQuery’s data products enable developers to access and analyze blockchain data using a GraphQL interface. By leveraging these tools, developers can streamline their development process and focus on creating innovative applications on the Sello blockchain.